[solipsism]

You seem to be missing everyone's point.

Virtually anyone who would consider Elon Musk's ideas using your approach would immediately throw them out, for many many reasons. So your approach is meaningless unless you can tell everyone exactly what criteria to use when deciding if something "would not work."

If your assertion is just that you have to be so smart that you can analyze all the variables and correctly predict the future, then that's not really useful to anyone is it?